Key for input device



FIG. 1 is a perspective view of a key for input device showing our new design;

FIG. 2 is a top view of the key for input device thereof;

FIG. 3 is a front view of the key for input device thereof; and,

FIG. 4 is a right side view of the key for input device thereof.

The broken line configuration of the four shapes shown on the key is shown for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a key for input device, as shown and described. 